Mina may refer to: 1  Mina, a folk word related with the extraction of mineral resources (mines). 2  Mina (given name) , a given name (and list of people and characters with that name). 3  Mina (surname) , a surname (and list of people with that name).
Salts can be easily identified, since they usually consist of positive ions from a metal with negative ions from a non metal. The salt we put on our fries is actually sodium chloride and is made up of metal Na1+ and non metal Cl1- ions. Often you will see this written as Na+ and Cl- (the 1 is dropped) or simply NaCl.
Salt crystals are made up of ions that are electrically charged atoms or molecules. Every atom has a nucleus made up of protons, all of which have an electrical charge. Atoms also have neutrons but these have no charge at all, they are neutral.